Our factory is located in Yanshan County, Cangzhou City, Hebei Province. We Manufacturing extruded fin tubes, embedded G type fin tubes, High frequency welded spiral fin tubes, low fin tube, laser welded fin tubes, L / L L / K L fin tubes, Internally fin tubes, elliptical fin tubes, longitudinal fin tube, serrated fin tubes. All of thse are used for energy saving and environmental protection parts and equipment. Datang has 20 years of production experience, and through the I S 0 9 0 0 1 international quality system certification. All our products have passed the water pressure test and the fin welding strength pull test. These fin tubes are 100% fully loaded to ensure quality. These fin tube have pressure resistance, corrosion resistance, and oxidation resistance protection. We have professional engineer support, efficient sales team and competitive price advantage, which attracts customers from all over the word. After several years of development, we have made great progress, we are equipped with laser welding machines, high frequency welding machines, rolling welding machines, tensile testing machines, water pressure testing environment and corrosion testing laboratory. Our R & D department provides strong technical support, enabling us to receive some operation and maintenance projects. We can produce at least 10000 fin tubes per day. We are a reliable supplier of fin tubes and heat exchanger with a one year warranty. We look forward to more cooperation.